Rahul plans strategy for State polls

Washington, Apr 23: Air pollution over northern India has plummeted to a 20-year-low for this time of the year, according to satellite data published by US space agency National Aeronautics and Space Administration (NASA).
The US space agency's satellite sensors observed aerosol levels at a 20-year low post the countrywide lockdown, implemented to slow the spread of the novel coronavirus.

"We knew we would see changes in atmospheric composition in many places during the lockdown," said Pawan Gupta, a Universities Space Research Association (USRA) scientist at NASA''s Marshall Space Flight Center. "But I have never seen aerosol values so low in the Indo-Gangetic Plain at this time of year," added Mr Gupta.

Acting Assistant Secretary of State for South and Central Asia Alice G Wells tweeted, "These images from NASA were taken each spring starting in 2016 and show a 20-year low in airborne particle levels over India. When India and the world are ready to work and travel again, let's not forget that collaborative action can result in cleaner air."

The data published with maps show aerosol optical depth (AOD) in 2020 compared to the average for 2016-2019. Aerosol optical depth is a measure of how light is absorbed or reflected by airborne particles as it travels through the atmosphere.

If aerosols are concentrated near the surface, an optical depth of 1 or above indicates very hazy conditions. An optical depth, or thickness, of less than 0.1 over the entire atmospheric vertical column is considered "clean." The data were retrieved by the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA's Terra satellite.

In the first few days of the lockdown, it was difficult to observe a change in the pollution signature. "We saw an aerosol decrease in the first week of the shutdown, but that was due to a combination of rain and the lockdown," said Mr Gupta.

Around March 27, heavy rain poured over vast areas of northern India and helped clear the air of aerosols. Aerosol concentrations usually increase again after such heavy precipitation.

"After the rainfall, I was really impressed that aerosol levels did not go up and return to normal. We saw a gradual decrease and things have been staying at the level we might expect without anthropogenic emissions," Mr Gupta said.

On March 25, the Indian government placed its 1.3 billion citizens under a strict lockdown to reduce the spread of COVID-19. The countrywide mandate decreased activity at factories and severely reduced car, bus, truck and airplane traffic. Every year, aerosols from anthropogenic (human-made) sources contribute to unhealthy levels of air pollution in many Indian cities.

Aerosols are tiny solid and liquid particles suspended in the air that reduce visibility and can damage the human lungs and heart.

In southern India though, the story is a little hazier. Satellite data show aerosol levels have not yet decreased to the same extent. In fact, levels seem to be slightly higher than in the past four years. The reasons are unclear but could be related to recent weather patterns, agricultural fires, winds or other factors.

"This a model scientific experiment," Robert Levy, program leader for NASA's MODIS aerosol products, said about the lockdown and its effects on pollution.

"We have a unique opportunity to learn how the atmosphere reacts to sharp and sudden reductions in emissions from certain sectors. This can help us separate how natural and human sources of aerosols affect the atmosphere," Mr Levy added.

New Delhi, May 27: As per the prediction from the IMD, severe heatwave conditions continued in several parts of north India with Delhi recording the country’s second-highest temperature at 47.6 degrees Celsius. On the other hand, Churu in Rajasthan sizzled at 50 degrees Celsius, reporting the highest temperature in the country. Also Read - Delhi Temperature: Heatwave to Continue, IMD Issues Alert, Mercury Rises to 46 Degrees

In Delhi, the mercury soared to 47.6 degrees Celsius in Palam area and most places recorded their maximum temperatures six notches above normal. The Safdarjung Observatory, which provides representative figures for the city, recorded a maximum of 46 degrees Celsius.

The last time when the mercury at the Safdarjung weather station touched the 46-degrees-Celsius mark was on May 19, 2002.

The IMD said the weather stations at Lodhi Road and Aya Nagar recorded their respective maximum at 45.4 degrees and 46.8 degrees Celsius.

In its earlier forecast, the IMD has said that dust storm and thunderstorm with winds gusting up to 60 kilometres per hour is likely over the National Capital Region on Friday and Saturday.

On the other hand, severe heatwave conditions prevailed in several parts of Rajasthan on Tuesday, with the mercury touching 50 degrees Celsius in Churu district.

The IMD said this is the second-highest maximum temperature recorded in Churu district in the month of May in the last 10 years.

Other areas such as Bikaner, Gangangar, Kota and Jaipur recorded maximum temperatures of 47.4 degrees Celsius, 47 degrees Celsius, 46.5 degrees Celsius and 45 degrees Celsius, respectively.

In the adjoining areas of Chandigarh, the severe heatwave condition continued in Haryana, Punjab with Hisar being the hottest place in the region at 48 degrees Celsius.

The Retailers Association of India (RAI) has said that ad hoc lockdowns by state governments are impacting the businesses of already-stressed retailers, along with hurting the economic revival of the country.

In a statement, the body of the organised retail industry said that the long road to recovery for the Indian retail industry continues to meet stumbling blocks with numerous restrictions being imposed at the state and local levels.

"Total lockdowns in some places and limited operational hours and days in several others are creating setbacks for retailers as the already stressed retail businesses are getting further interrupted and in turn, dampening consumer sentiment," it said.

According to RAI, although the intentions are that of citizen safety and social distancing, the recent instances of local lockdowns and ad hoc restrictions being imposed in Uttar Pradesh, Maharashtra, Andhra Pradesh and Karnataka are having a distressing impact on retail businesses.

Retailers are already facing huge setbacks in terms of payment of wages and rentals due to very low sales of about 40 per cent as compared to last year, thanks to the extended lockdown, it said.

Contesting the restrictions on operating hours, Sandeep Kataria, CEO, Bata India said: "Restricted shopping time can lead to unnecessary overcrowding of stores, which is unfavourable towards the personal safety of both store staff and customers. Longer operational hours will support recovery for retailers as well as help adhering to social distancing norms."

Arvind Mediratta, MD and CEO, METRO Cash & Carry India said that these lockdowns will create severe inconvenience for all citizens as they also bar operations of food and grocery retail and wholesale stores.

Such hastily-implemented decisions by states undermine investor confidence and would come in the way of making the country "aatmanirbhar" or self-reliant, he said.

Voicing the concerns of retailers, the RAI has submitted representations to various state and local authorities that puts forth recommendations to get businesses and life of consumers on the track to recovery.

It has said that authorities should mandatorily allow essential shops including kiranas, general trade shops, supermarkets, hypermarkets and wholesalers to operate every day of the week until 9 p.m. to cater to the daily needs of the customers.

It has also sought ensuring uniform and regular opening of all categories of retail for full working hours while following stringent hygiene practices and adhering to social distancing norms. This will help avoid overcrowding outside stores as demand will get distributed over all days of the week, it said.

The industry body has also asked the local authorities to open malls in all states. Malls can ensure a safe shopping experience wherein safety measures are taken by both, the mall authorities and the retailers, it said.

Kumar Rajagopalan, CEO, RAI, said: "The need of the hour is concerted efforts by all stakeholders. While retailers are doing their bit by following stringent hygiene practices, the policymakers too need to support to ensure economic revival across the country. Consumption is important for the country and supports the business environment."